1 def coroutine():
 2     sock = socket.socket()
 3     sock.setblocking(0)
 4     address = yield sock
 5     try:
 6         sock.connect(address)
 7     except BlockingIOError:
 8         pass
 9     data = yield
10     size = yield sock.send(data)
11     yield sock.recv(size)

 1 while True:
 2         r_list,w_list,e_list = select.select(inputs,outputs, ())
 3         for i in w_list:
 4             # print(type(i))
 5             coro_dict[i].send(b'GET / HTTP/1.1\r\nHost: www.baidu.com\r\nConnection: Close\r\n\r\n')
 6             outputs.remove(i)
 7             inputs.append(i)
 8         for i in r_list:
 9             coro_dict[i].send(1024)
10             inputs.remove(i)

1 ?  python3 5.py 10
2 spend time : 0.058114051818847656
3 ?  python3 5.py 20
4 spend time : 0.0949699878692627